applyschema

Rename columns in your data extract according to your Data Mapping.

This guide explains how to configure the applyschema instruction. To learn about another instruction, go back to the Available custom script instructions overview.

Introduction

Use the applyschema instruction to rename fields in the data extract according to Data Mapping.

Creating a custom script transformation using the applyschema instruction

To create and configure a custom script using the applyschema instruction, follow these steps:

  1. Create a custom script transformation.

  2. In the Instructions step, select the applyschema instruction.

  3. To configure the custom script instruction, fill in the following fields. Required fields are marked with an asterisk (*).

Reverse

Select this checkbox to restore the original field names. This reverses the effects of a previously applied applyschema transformation.

Subtable

Enter the name for a subtable that you want to use within this custom script.

A subtable is a temporary table that only exists for this custom script. You can apply additional instructions within the same custom script to the subtable. However, the subtable cannot be used in any other custom scripts.

If a subtable does not exist for the current custom script, the transformation is applied to the data extract, and the enriched data is output into the subtable. If the subtable already exists for the custom script, the subtable is used as the input for the transformation and optionally as the output.